neurtek"! instruments Pencil Hardness TesterQuality Control Instruments Equipment used for measuring hardness of paintings and inks. Technical Specifications Pencils of various grades of hardness are moved over the coated area at a specific angle and pressure. The hardness of the pencil which damages the surface determinates the hardness of the coating. The repeatability is assured by the pencil holder. Basic Set: - Assortment of 14 graded pencils, ranging in hardness from: 6B, 5B, 4B, 3B, 2B, B, F, HB, H, 2H, 3H, 4H, 5H. 6H. - Pencil holder. - Methacrylate rack - Pencil Sharpener Basic Set El suministro basico comprende: o Assortment of 14 graded pencils, ranging in hardness from: 6B, 5B, 4B, 3B, 2B, B, F, HB, H, 2H, 3H, 4H, 5H, 6H. o Pencil holder. Ordering information: Item Number 0300200 includes the complete Basic set. Item Number 0300204 set of 14 graded pencils. Item Number 030020 set of3 graded pencils 7H, 8H y 9H. NEURTEK S.A. ALL RIGHTS RESERVED. TECHNICAL DATA SUBJECT TO CHANGE WITHOUT NOTICE.